Icy conditions made for light traffic in Dallas on Friday. Residents used to warmer temperatures appeared to heed warnings on what one man called "Ice Friday."

Icy conditions made for light traffic in Dallas on Friday. Residents used to warmer temperatures appeared to heed warnings on what one man called "Ice Friday."

Photo: LM Otero, STF

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Traffic on IH-35E South bound sits at a complete stop as a tractor trailer North bound sits on the side of the road, Saturday, Dec. 7, 2013, in Sanger, Texas. Icy sections of Interstate 35 north of Dallas were closed for hours at a time over the last day as tractor-trailers had trouble climbing hills, wrecks occurred and vehicles stalled, authorities said. less

Traffic on IH-35E South bound sits at a complete stop as a tractor trailer North bound sits on the side of the road, Saturday, Dec. 7, 2013, in Sanger, Texas. Icy sections of Interstate 35 north of Dallas were ... more

Photo: Tony Gutierrez, Associated Press

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A lone vehicle is seen navigating icy road conditions on the fly over from IH-35W North to IH-35E South bound, Saturday, Dec. 7, 2013, in Denton, Texas. Icy sections of Interstate 35 north of Dallas were closed for hours at a time over the last day as tractor-trailers had trouble climbing hills, wrecks occurred and vehicles stalled, authorities said. less

A lone vehicle is seen navigating icy road conditions on the fly over from IH-35W North to IH-35E South bound, Saturday, Dec. 7, 2013, in Denton, Texas. Icy sections of Interstate 35 north of Dallas were ... more

Photo: Tony Gutierrez, Associated Press

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Livestock huddle as they feed in an open field covered in ice, Saturday, Dec. 7, 2013, near Corinth, Texas.

Livestock huddle as they feed in an open field covered in ice, Saturday, Dec. 7, 2013, near Corinth, Texas.

Photo: Tony Gutierrez, Associated Press

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Dallas County School buses sit with ice on their roofs in a frozen over lot in North Dallas, Saturday, Dec. 7, 2013. Icy, treacherous sections of Interstate 35 north of Dallas were closed for hours at a time over the last day as tractor-trailers had trouble climbing hills, wrecks occurred and vehicles stalled, authorities said. less

Dallas County School buses sit with ice on their roofs in a frozen over lot in North Dallas, Saturday, Dec. 7, 2013. Icy, treacherous sections of Interstate 35 north of Dallas were closed for hours at a time ... more

Photo: Tony Gutierrez, Associated Press

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The Hi-Five interchange where LBJ Freeway and Hwy 75 connect is shown with slow moving traffic moving navigating icy road conditions in all directions, Saturday, Dec. 7, 2013, in Dallas. Icy, treacherous sections of Interstate 35 north of Dallas were closed for hours at a time over the last day as tractor-trailers had trouble climbing hills, wrecks occurred and vehicles stalled, authorities said. less

Tractor trailer trucks are shown packed into a Travel Center lot as others, top, sit on the service road unable to get in along the IH-35 North bound service road, Saturday, Dec. 7, 2013, in Sanger, Texas. Tractor trailers sits at a dead stop on IH 35 South bound as some people are seen walking on the highway, Saturday, Dec. 7, 2013, near Sanger, Texas. Icy, treacherous sections of Interstate 35 north of Dallas were closed for hours at a time over the last day as tractor-trailers had trouble climbing hills, wrecks occurred and vehicles stalled, authorities said. less

Tractor trailer trucks are shown packed into a Travel Center lot as others, top, sit on the service road unable to get in along the IH-35 North bound service road, Saturday, Dec. 7, 2013, in Sanger, Texas. ... more

Photo: Tony Gutierrez, Associated Press

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A boy wake his hike in icy conditions Friday morning, Dec. 6, 2013, in Dallas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, Missouri, Illinois and Indiana.(AP Photo/LM Otero) less

A boy wake his hike in icy conditions Friday morning, Dec. 6, 2013, in Dallas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, ... more

Photo: LM Otero, Associated Press

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A tree felled by ice rests near a house Friday, Dec. 6, 2013, in Richardson, Texas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, Missouri, Illinois and Indiana. An ice storm in North Texas has knocked out power to more than a quarter of a million homes and business, canceled almost 1,000 flights and contributed to a fatal wreck. The National Weather Service issued a winter storm warning for the Dallas area until Friday night. (AP Photo/LM Otero) less

A tree felled by ice rests near a house Friday, Dec. 6, 2013, in Richardson, Texas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, ... more

Photo: LM Otero, Associated Press

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A North Texas Tollway Authority road plow and sanding truck driver, Chris Sweet, adjusts his cold weather gear after his truck was loaded with sand in preparation for icy roads and winter weather in Plano, Texas, Thursday, Dec. 5, 2013. North Texas is preparing for an ice storm that is to arrive later Thursday evening. less

A North Texas Tollway Authority road plow and sanding truck driver, Chris Sweet, adjusts his cold weather gear after his truck was loaded with sand in preparation for icy roads and winter weather in Plano, ... more

Photo: LM Otero, AP

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Laura Perez scrapes ice off of her car as she prepares to drive to work in icy conditions Friday morning, Dec. 6, 2013, in Dallas. An ice storm in North Texas has knocked out power to more than a quarter of a million homes and business, canceled almost 1,000 flights and contributed to a fatal wreck. The National Weather Service issued a winter storm warning for the Dallas area until Friday night. (AP Photo/LM Otero) less

Laura Perez scrapes ice off of her car as she prepares to drive to work in icy conditions Friday morning, Dec. 6, 2013, in Dallas. An ice storm in North Texas has knocked out power to more than a quarter of a ... more

Photo: LM Otero, Associated Press

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A gust of wind collapses Joseph Mezo's umbrella as he walks to work in light sleet and ice conditions Friday morning, Dec. 6, 2013, in Dallas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, Missouri, Illinois and Indiana. (AP Photo/LM Otero) less

A gust of wind collapses Joseph Mezo's umbrella as he walks to work in light sleet and ice conditions Friday morning, Dec. 6, 2013, in Dallas. Winter storm and ice warnings are in effect through much of today ... more

Photo: LM Otero, Associated Press

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Sleet falls and ice covers the street early Friday morning, Dec. 6, 2013, in Dallas. An ice storm has coated north Texas in a sheet of ice causing much of the region to cancel school and other activities. (AP Photo/LM Otero) less

Sleet falls and ice covers the street early Friday morning, Dec. 6, 2013, in Dallas. An ice storm has coated north Texas in a sheet of ice causing much of the region to cancel school and other activities. (AP ... more

Photo: LM Otero, Associated Press

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Joseph Mezo uses an umbrella as he walks to work in light sleet and icey conditions Friday morning, Dec. 6, 2013, in Dallas. An ice storm in North Texas has knocked out power to more than a quarter of a million homes and business, canceled almost 1,000 flights and contributed to a fatal wreck. The National Weather Service issued a winter storm warning for the Dallas area until Friday night. (AP Photo/LM Otero) less

Joseph Mezo uses an umbrella as he walks to work in light sleet and icey conditions Friday morning, Dec. 6, 2013, in Dallas. An ice storm in North Texas has knocked out power to more than a quarter of a ... more

Photo: LM Otero, Associated Press

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Kenny Burger, left, helps his father Harold Burger saw tree ice covered tree limbs knocked down by a winter storm Friday morning, Dec. 6, 2013, in Richardson, Texas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, Missouri, Illinois and Indiana. (AP Photo/LM Otero) less

A North Texas Tollway Authority road plow and sanding truck is loaded with sand in preparation for icy roads and winter weather in Plano, Texas, Thursday, Dec. 5, 2013. North Texas is preparing for an ice storm that is to arrive later in the evening, Thursday. less

A North Texas Tollway Authority road plow and sanding truck is loaded with sand in preparation for icy roads and winter weather in Plano, Texas, Thursday, Dec. 5, 2013. North Texas is preparing for an ice storm ... more

Photo: LM Otero, AP

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City of Paris Street Department employee's use a chain saws to cut up a large tree blocking 17th Northeast Street in Paris, Texas this morning. A winter storm moved into North East Texas Friday, Dec. 6 2013 bringing with it freezing rain, ice and temperatures in the low 20’s. (AP Photo / The Paris News: Sam Craft) less

City of Paris Street Department employee's use a chain saws to cut up a large tree blocking 17th Northeast Street in Paris, Texas this morning. A winter storm moved into North East Texas Friday, Dec. 6 2013 ... more

Photo: Sam Craft, Associated Press

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Commuters make their way on an ice covered highway early Friday morning, Dec. 6, 2013, in Dallas. An ice storm has coated north Texas in a sheet of ice causing much of the region to cancel school and other activities. (AP Photo/LM Otero) less

Commuters make their way on an ice covered highway early Friday morning, Dec. 6, 2013, in Dallas. An ice storm has coated north Texas in a sheet of ice causing much of the region to cancel school and other ... more

Photo: LM Otero, Associated Press

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City of Paris Street Department employee’s use an excavator to clear Cedar Street near 15th Southeast Street of a large tree that fell blocking the road. A winter storm moved into North East Texas Friday, Dec. 6 2013 bringing with it freezing rain, ice and temperatures in the low 20’s. (AP Photo / The Paris News: Sam Craft) less

City of Paris Street Department employee’s use an excavator to clear Cedar Street near 15th Southeast Street of a large tree that fell blocking the road. A winter storm moved into North East Texas Friday, ... more

Photo: Sam Craft, Associated Press

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A large limb rests on a power line along in Paris, Texas after breaking away from a tree due to heavy ice accumulation. A winter storm moved into North East Texas Friday, Dec. 6, 2013 bringing with it freezing rain, ice and temperatures in the low 20’s. (AP Photo / The Paris News, Sam Craft) less

A large limb rests on a power line along in Paris, Texas after breaking away from a tree due to heavy ice accumulation. A winter storm moved into North East Texas Friday, Dec. 6, 2013 bringing with it freezing ... more

Photo: Sam Craft, Associated Press

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Ice collects on a car parked outside a Lowe's home improvement store Thursday, Dec. 5, 2013 in Plano, Texas. The National Weather Service issued winter storm and ice warnings through much of Friday for parts of Texas, Oklahoma, Arkansas, Mississippi, Missouri, Illinois and Indiana. Some parts of the Midwest were expected to see several inches of snow. (AP Photo/Benny Snyder) less

Ice collects on a car parked outside a Lowe's home improvement store Thursday, Dec. 5, 2013 in Plano, Texas. The National Weather Service issued winter storm and ice warnings through much of Friday for parts of ... more

Photo: Benny Snyder, Associated Press

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Ice collects on a car parked outside a Tom Thumb grocery store Thursday, Dec. 5, 2013 in Dallas, Texas. The National Weather Service issued winter storm and ice warnings through much of Friday for parts of Texas, Oklahoma, Arkansas, Mississippi, Missouri, Illinois and Indiana. Some parts of the Midwest were expected to see several inches of snow. less

Ice collects on a car parked outside a Tom Thumb grocery store Thursday, Dec. 5, 2013 in Dallas, Texas. The National Weather Service issued winter storm and ice warnings through much of Friday for parts of ... more

Photo: Benny Snyder, AP

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Traffic on the Broadway Extension in north Oklahoma City is slowed due to snow and sleet brought by a winter weather system that moved across the state Thursday, Dec. 5, 2013.

Traffic on the Broadway Extension in north Oklahoma City is slowed due to snow and sleet brought by a winter weather system that moved across the state Thursday, Dec. 5, 2013.

Photo: Jim Beckel, AP

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George Lara, a graduate student at the University of Texas, uses a deicer to clear the windshield of his car on Thursday, Dec. 5, 2013, in Odessa, Texas. The winter storm brought sleet and freezing to the West Texas region on Thursday, coating roads with a layer of thin ice and prompting many truckers to pull off the interstate. less

George Lara, a graduate student at the University of Texas, uses a deicer to clear the windshield of his car on Thursday, Dec. 5, 2013, in Odessa, Texas. The winter storm brought sleet and freezing to the West ... more

Photo: Mark Sterkel, AP

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Traffic slowly moves along an ice covered highway Friday, Dec. 6, 2013, in Dallas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, Missouri, Illinois and Indiana. less

Traffic slowly moves along an ice covered highway Friday, Dec. 6, 2013, in Dallas. Winter storm and ice warnings are in effect through much of today for parts of six states in the Midwest, including Texas, ... more